Key Benefits and Advantages
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Compact Footprint: The small, streamlined design allows these valves to be mounted directly on actuators or within crowded instrument panels where space is at a premium.
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Two-Way and Three-Way Versatility:
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Types 167D and 167DS: Standard two-way switching valves for simple on/off or pressure reduction tasks.
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Types 167DA and 167DAS: Three-way switching valves, ideal for venting downstream pressure or switching between two different pneumatic sources.
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Easy and Accurate Adjustment: Features a simple adjusting screw that allows technicians to set the switching or regulated pressure with precision in the field.
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Rugged Construction: Built to withstand the vibrations and environmental stresses common in oil and gas and chemical processing plants.
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Corrosion Resistant Fasteners: Standard construction includes bolting and fasteners treated to resist atmospheric corrosion, ensuring the valve remains serviceable even in humid or coastal environments.
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Stainless Steel Material Option: For highly corrosive process environments or offshore applications, the 167DS and 167DAS models offer full stainless steel construction for maximum durability.
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Ease of Maintenance: The simple internal design allows for quick inspection of the valve plug and seat, minimizing downtime during routine instrument maintenance.
Technical Properties
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Media: Gaseous fluids (Air, Natural Gas, Nitrogen).
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Maximum Inlet Pressure: Designed to handle standard instrument air and gas header pressures.
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Temperature Capabilities: Available in configurations suited for a wide range of ambient and process temperatures.
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End Connections: Typically 1/4-inch NPT for easy integration with standard pneumatic tubing and fittings.
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Construction Materials: Choice of Aluminum or Stainless Steel bodies to meet site-specific material specifications.
Field of Application
The 167D Series is a fundamental component in pneumatic control logic. It is most often found serving as a “gas regulator” for high-performance pilots or as a switching relay in safety and sequencing circuits.
Primary Industries and Uses:
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Oil and Gas Production: Providing clean, regulated gas to pneumatic controllers on separators and wellhead skids.
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Chemical Processing: Managing signal air for control valve positioners and pneumatic relays.
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Pulp and Paper: Integrated into the pneumatic logic of automated processing machinery.
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Power Generation: Used in the control air systems for large-scale boiler and turbine dampers.
